.block{
    right:0%;
    box-sizing: border-box;
}
.block:before{
    content: "";
    position: absolute;
    width: 100%;
    top: 33%;
    bottom: 33%;
}
.dashed{
    position: absolute;
    width: 100%;
    height: 4.16666%;
    border-bottom: 1px dashed rgba(214, 214, 214, 0.5);
    z-index: -1;
}